Changelog

0.10.0

Improvement: Use different generic parameters for name and help at metric construction (#324).
Bug fix: Error instead of panic when constructing histogram with unequal label key and label value length (#326).
Bug fix: Return Error::AlreadyReg on duplicate collector registration (#333).
Bug fix: Make Histogram::observe atomic across collects (#314).
Internal change: Replace spin with parking_lot (#318).
Internal change: Optimize metric formatting (#327).
Internal change: Update parking_lot and procfs dependencies (#337).

0.9.0

Add: Implement encode function for summary type metrics.

0.8.0

Add: Reset Counters (#261)
Add: Discard Histogram timers (#257)
Add: observe_closure_duration for better observing closure duration for local histogram (#296)
Fix a bug that global labels are not handled correctly (#269)
Improve linear bucket accuracy by avoiding accumulating error (#276)
Internal change: Use thiserror to generate the error structure (#285)
Internal change: Switch from procinfo to procfs (#290)
Internal change: Update to newer dependencies

0.7.0

Provide immutable interface for local counters.

0.6.1

Fix compile error when ProtoBuf feature is not enabled (#240).

0.6.0

Add: Expose the default registry (#231).
Add: Support common namespace prefix and common labels (#233).

0.5.0

Change: Added TLS and BasicAuthentication support to push client.

0.4.2

Change: Update to use protobuf 2.0.

0.4.1

Change: (Local)(Int)Counter.inc_by only panics in debug build if the given value is < 0 (#168).

0.4.0

Add: Provides IntCounter, IntCounterVec, IntGauge, IntGaugeVec, LocalIntCounter, LocalIntCounterVec for better performance when metric values are all integers (#158).
Change: When the given value is < 0, (Local)Counter.inc_by no longer return errors, instead it will panic (#156).
Improve performance (#161).